搜索结果: 1-15 共查到“农学 forest road”相关记录25条 . 查询时间(0.172 秒)
Monitoring geometric properties of an existing forest road using airborne Lidar data
vertical profile cross section horizontal profiles total station roadbed
2018/3/6
Accurate information about geometric properties of a forest road is essential for the sustainable forestry and transportation
safety. In this study the ability of airborne Lidar in detecting vertical...
Evaluating the effect of biological stabilization on landslide control at the edge of forest road
sliding area stabilized area alder trees soil mechanics benchmarking
2018/3/6
Landslide is one of the negative sides of building non-standard roads in forest areas. The aim of the present study
was to assess the effect of biological stabilization on landslide at the edge of fo...
Predicting the earthwork width and determining the annual growth loss due to forest road construction using artificial neural network and ArcGIS
area of road earthwork hillside slope roadside rock share
2016/8/2
The area of forest destruction as well as the annual growth loss due to road construction before constructing a road was predicted. To do this, road cross sections of 88 points along the 10 km propose...
Determining an optimal path for forest road construction using Dijkstra’s algorithm
selecting path nodes links Nahar Khvoran forest
2016/7/6
From an economic point of view a well-designed road path with the minimum construction cost is an optimal path that can be found using Dijkstra’s algorithm. In this study Dijkstra’s algorithm that con...
Modelling of forest road sediment in the northern forest of Iran (Lomir Watershed)
wood dams SPSS multiple regression culvert
2015/5/5
Forest roads are the most important ways of access; nevertheless, they are the main source of sediment
production. The delivered sediment by forest roads causes environmental problems and pollution ...
Relationship between forest road length and village development during three decades in Neka-Zalemrood forest
road length village development indices Neka-Zalemrood forest
2015/4/14
Forest roads are built to facilitate the transport of personnel and wood, and so to promote village development. In this study 18 development indices of village in relation to increasing forest road d...
The effects of Rubus hyrcanus L. and Philonotis marchica (Hedw.) Brid. on soil loss prevention from cutslopes of a forest road
vegetation type runoff soil loss cutslope forest road
2015/4/14
The effects of Rubus hyrcanus L. and Philonotis marchica (Hedw.) Bridon on runoff generation and soil loss from cutslopes of forest roads were investigated. The study was conducted at the northern for...
Calculating the correction factor of skidding distance based on forest road network
real skidding distance theoretical skidding distance correction factor Chafrood forest
2015/3/27
Average skidding distance for forest stands is an important parameter for the determination of the optimum road density and spacing. In this research the real mean skidding distance and theoretical me...
Economics of a hydraulic hammer for forest road construction in a mountainous area
hydraulic hammer rock disintegration cut slope productivity costs
2015/3/27
This research deals with productivity and cost of rock disintegration and side casting of materials with the use of a hydraulic hammer mounted on a PC 220 Komatsu crawler excavator, which is used on r...
One of the cost factors in forest management is the development of road infrastructure. The objective of study was to develop a method using GIS and Multi-criteria Evaluation (MCE) to design a forest ...
The forest road network influences surface runoff of uninfiltrated precipitation water on forest lands, mainly in hilly and mountainous areas. This water flows onto the road crown in unpaved forest ro...
Research on principles of making access to mountain forests by forest road networki
forest roads forest road network mountain forest
2015/2/6
We consider making access to forests and forest complexes as an optimal allocation of routes of forest roads, land and air communications and transport routes with their optimal structure (composition...
Design of forest road network in relation to all-society functions of forests
forest road network all-society functions of forests total real potential and effect design of forest road
2015/2/2
The basic condition of forest management development is the accessibility of the forest. A design of the forest road network in relation to all-society functions of forests has been made in the catchm...
Noise level analysis of a bulldozer used in constructing a forest road in Mediterranean region of Turkey
Ergonomics noise worker’ safety work machines
2011/1/12
Heavy machinery utilized in forest operations, as one of the working environments with intensive noise disturbance, result detrimental effects on the workers’ health. Particularly, high level noise ge...
Natural Drying of Logging Residue Stems along a Forest Road and on a Paved Landing
drying location logging residue moisture content natural drying woody biomass
2009/8/28
An experiment on the natural drying of Chamaecyparis obtusa logging residue stems was carried out to determine the potential for use of this material as woody biomass (e.g. wood chip bio-fuel). The ex...